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CVE-2026-75871Server-Side Request Forgery (SSRF) in GitLab AI Gateway
GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.10 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect outbound model requests to an externally-controlled endpoint via a crafted inline flow configuration that overrides the HTTP Host header, resulting in disclosure of Google Cloud Vertex cloud service credentials and private signing keys.
9.6 CRITICALEPSS 0.33%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.6 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N |
| 8.2 | HIGH | 3.1GitLab (CNA) | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N |
Details
- CVE ID
- CVE-2026-75871
- Status
- Analyzed
- Assigner (CNA)
- GitLab
- Published
- Aug 27, 2026
- Last modified
- 2026-09-01 20:32 UTC
- Weaknesses
- CWE-918 · Server-Side Request Forgery (SSRF)
Affected Products
As published by the CNA in the CVE record.
GitLabGitLab AI Gateway3 version ranges
- 18.10 before 19.0.12
- 19.1 before 19.1.7
- 19.2 before 19.2.2